Ultra capacitors, which have high power density, provide energy storage for niche applications. The ultra capacitor market, while growing, it not without its challenges. High prices and lack of adoption due to low awareness about the technology and its related benefits have been a few of the obstacles. Growth is fueled by environmentally friendly alternatives to traditional energy storage methods. Markets include automotive, consumer electronics and industrial power management. By far the highest-value target for ultra capacitor technology is the global automobile industry, which use these capacitors as load-leveling devices for batteries in electric and hybrid vehicles. According to Lux Research, the market for ultra capacitors will more than double to US$836 million in 2018, up from US$466 million in 2013.